5-(1-cyano-1-methyl-ethyl)thiophene-2-carboxylic acid 、 2-[5-(aminomethyl)-1,2,4-oxadiazol-3-yl]-N-[(3S,4R)-3-fluoro-1-methyl-4-piperidyl]-1-(2,2,2-trifluoroethyl)indol-4-amine hydrochloride 在
N-甲基咪唑 、 N,N,N',N'-tetramethylchloroformamidinium hexafluorophosphate 作用下,
以
乙腈 为溶剂,
反应 1.0h,
以37.9%的产率得到5-(1-cyano-1-methylethyl)-N-{[3-(4-{[(3S,4R)-3-fluoro-1-methylpiperidin-4-yl]amino}-1-(2,2,2-trifluoroethyl)-1H-indol-2-yl)-1,2,4-oxadiazol-5-yl]methyl}thiophene-2-carboxamide